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Biocontrol introduction

Target pest: Edwardsiana crataegi (Hemiptera: Cicadellidae), Froggat's apple leaf hopper

Agent introduced: Aphelopus typhlocybae (Hymenoptera: Dryinidae)

Imported: 1935, 1935

Import source: New York, USA

Released: 1936

Release details: In 1936 70 adults were released at Cawthorn Institute and 169 between Appleby and Mapua, Nelson. 16 were released at Cawthorn Institute, Nelson in 1937.

Establishment: Not recovered.


Cameron PJ, Hill RL, Bain J, Thomas WP (1989). A Review of Biological Control of Invertebrate Pests and Weeds in New Zealand 1874-1987. Technical Communication No 10. CAB International Institute of Biological Control. DSIR Entomology Division. 424p.